Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C5/00—Skis or snowboards
  • A63C5/04—Structure of the surface thereof
  • A63C5/048—Structure of the surface thereof of the edges
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C5/00—Skis or snowboards
  • A63C5/04—Structure of the surface thereof
  • A63C5/044—Structure of the surface thereof of the running sole
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C5/00—Skis or snowboards
  • A63C5/03—Mono skis; Snowboards

Definitions

• the invention relates to a snowboard or ski of the type indicated in the introduction to claim 1.
• Snowboards/skis today are normally designed with a flat surface between the tips at the two ends.
• the sliding surface today is normally composed of a flat sole surface between the tips at the two ends.
• the board is edged and the weight is distributed over the board's sliding surface by adapting the camber.
• the board In the middle the board is either completely flat (then the angle is 0) or the sliding surface with a steel edge will form a relatively small angle with each other when viewed in cross section and the lines are extended from the outermost sliding surfaces so that they intersect and it is the acute angle, which the outermost sole with one of the steel edges forms with the corresponding outermost sole on the opposite side, viewed in cross section, substantially increases forwards towards the board's widest portion at the transition to the tip.
• the angle increases we mean here that an acute angle between the two outermost surfaces on each side is substantially increasing from the middle of the ski/snowboard towards each of the tips.
• the angle represented by the outermost sliding surfaces is the sum of all the angles, so that it can also be said that this sum substantially increases from the middle towards each of the tips.
• Another way of achieving approximately the same functionality is to use at least two sliding surfaces which are straight in cross section, but where these straight parts of the sole, viewed in cross section, do not merge into one another, but there is a sole surface which is cambered in cross section between the straight sole surfaces.
• a substantial potential for improvement has therefore been achieved by providing a ski or a snowboard with a cambered or curved middle surface, respectively a board with more than three sliding surfaces.
• a larger angle to the ground is therefore obtained with the steel edge than if only three surfaces are used.
• the angle and width of the sliding surface can be optimised according to different conditions. There may, for example, be five sliding surfaces for the first 15 centimetres, followed by three sliding surfaces for the next 20 centimetres, subsequently a sliding surface in the middle, and then the rear part can be made symmetrical with the front part or the sliding surfaces may be varied according to experience in order to achieve the best dynamic in the conditions aimed for.
• the board/ski is symmetrical or not, either in relation to the longitudinal axis or the transversal axis. It may, for example, have five sliding surfaces in front, followed by three, subsequently a flat central portion and then only three sliding surfaces on the whole rear portion or vice versa.
• the steel edges For a snowboard that is to be used on rails, it is advantageous for the steel edges to be located slightly higher than the flat first sole portion between the bindings, thereby preventing the steel edge from being caught in uneven patches in the rail, causing the rider to fall forwards.
• An important adaptation to this need will therefore be to make a snowboard that has a certain angle between the secondary sole surfaces and the flat first sole portion and the middle, i.e. between the bindings on the snowboard or under the bindings on the ski.
• the secondary sole surface is allowed to level out when moving slightly forwards and backwards from this cross section, thereby obtaining steel edges there that are completely or almost in the same plane as the flat first sole portion.
• the steel edges are located slightly higher than the flat first sole portion under the binding, thus preventing the steel edge from being caught in uneven portions in the rail, causing the rider to fall forwards.
• An important adaptation to this need will therefore be to make skis with a certain angle between the secondary sole surface and the flat first sole portion in the middle, i.e. under the bindings on the skis.
• the secondary sole portion is allowed to level out when moving forwards and backwards from this transverse section, thereby giving steel edges which to a greater extent are in the same plane as the flat first sole portion approximately in the front edge and rear edge of the bindings.
• a second relevant snowboard embodiment is provided when the stiffening involved in the bindings is taken into consideration and a slightly larger angle is therefore incorporated between the flat part of the board and the secondary sliding surfaces in the area of the binding attachments.
• a third relevant embodiment is for riding on icy surfaces where slight undulations are made in the sole, with the result that the steel edge digs down better into the icy surface. This means that alternately increasing and decreasing angles are obtained as one moves from the middle to the tips, or alternatively alternately increasing and decreasing raising of the steel edge as one moves from the middle towards the tip.
• Fig. 1 is an example of a board according to the invention with several sliding surfaces
• Fig. 2 illustrates an asymmetrical board with several sliding surfaces according to the invention
• Fig. 3 is a third embodiment of the invention.
• Fig. 4 illustrates a ski with several sliding surfaces according to the invention
• Fig. 5 illustrates a board with two sliding surfaces which are straight in cross section, nearest the steel edge with a curved sliding surface between them,
• Fig. 6 illustrates a board according to a further embodiment of the invention
• Fig. 7 illustrates a board of an asymmetrical type according to the invention
• Fig. 8 is yet another embodiment of the invention
• Fig. 9 is an alternative design of a ski with a sliding surface according to the invention
• Fig. 10 illustrates a snowboard according to the invention, particularly well-suited for rails
• Fig. 11 is an embodiment of the invention with an undulating edge area with an extra raised portion at the bindings
• Fig. 12 is an alternative embodiment with the same principle as that illustrated in figure 10, particularly well-suited for rails,
• Fig. 13 is a ski viewed from above illustrating the position of the special auxiliary profiles
• Fig. 14 illustrates the same ski from the sole side, with a corresponding principle for skis on rails to that illustrated for a snowboard in figs. 10 and 12,
• Figs. 13-14 a-f illustrate cross sections of the same ski with sole form for rails and auxiliary profile on the top over the secondary sole surfaces
• Fig. 15 illustrates that the transitions between the portions are not necessarily rectilinear
• Fig. 16 illustrates some additional kinds of auxiliary strips for sanding. More details on the figures
• Figure 1 a illustrates the underside of a board that has five sliding surfaces in the transition to the tips, three sliding surfaces slightly closer to the middle and only one common sliding surface on the central portion, followed by three sliding surfaces and then five sliding surfaces at the rear.
• Figures 1 b-d show different cross sections of this board.
• the board in figure 1 is illustrated with a different shape on the front and rear portions and there may often be dynamic reasons for the different shape at the front and rear, even though there is usually the same shape at both ends if the board is also symmetrical about its central transversal axis.
• Figure 2a illustrates the underside of an asymmetrical board which has five sliding surfaces at one tip (in principle it is optional whether it is the front tip or rear tip), and then three sliding surfaces on the rest of the board.
• Figures 2b-d illustrate different cross sections of the same board.
• Figure 3 a illustrates the underside of a board that has three sliding surfaces at one tip and a common sliding surface in the central portion, followed by three and then four sliding surfaces towards the other tip.
• Figures 3b-e illustrate different cross sections of the same board.
• Figure 4a illustrates the underside of a ski that has five sliding surfaces closest to the front tip, followed by three sliding surfaces as one approaches the binding attachments, and only one common sliding surface on the central portion and then three sliding surfaces on the rear part of the ski.
• Figure 4b illustrates a slightly enlarged cross section of the ski in section A-A.
• Figure 5 a illustrates the underside of a board with two sliding surfaces which are straight in cross section, nearest the steel edge and a curved sliding surface between them. Between the bindings the board is completely flat.
• Figures 5b-d illustrate different cross sections of the same board. It should be noted that between the lines (11, 12) the board is curved, thereby avoiding the need for any pronounced break points, viewed in cross section (one may still choose to have both break points and curved portion).
• Figure 6a illustrates the underside of a board with three sliding surfaces which are straight in cross section, but where there are additional curved sliding surfaces between the sliding surfaces that are straight in cross section, with the result that the board consists of three straight and two cambered sliding surfaces, viewed in cross section.
• Figures 6b-d illustrate different cross sections of the same board. It should be noted that between the lines (11, 12) and between the lines (13, 14) the board is curved, thereby avoiding the need for any pronounced break points, viewed in cross section.
• Figure 7a illustrates the underside of a board that has four sliding surfaces asymmetrically about the longitudinal axis nearest the tips, followed by three sliding surfaces as one approaches the binding attachments and only one common sliding surface on the central portion. On the rear portion the board again has three sliding surfaces.
• Figure 7b illustrates an enlarged cross section A-A.
• Figure 8 a illustrates the underside of a board that has five sliding surfaces in front, followed by three, subsequently one and then three sliding surfaces at the rear.
• Figure 8b illustrates an enlarged cross section A-A.
• Figure 9 and figures 9b-9d illustrate the same principle for a ski.
• Figure 10 illustrates a snowboard according to a further embodiment of the invention, viewed from the sole side where the lines show the transition between the first sole surfaces and the rest of the board.
• the figures with the sections on the right illustrate possible cross sections.
• the cross sections illustrate a snowboard specially adapted for running on rails with less risk of being caught in the middle since the edges are raised as shown in cross section M-M, the uplift towards D and N is then reduced, before increasing again from C and G with slightly more uplift in B and H and even more uplift in A and I.
• the shape of the top affects the strength of the board and is of great importance, but is illustrated here only as flat, since in principle it may have a great many shapes within approximately the same functionality, and it can be used for adapting stiffness, torsional rigidity, etc.
• Figure 11 illustrates a snowboard according to the invention where the lines show the transition between the first sole surface and the rest of the board.
• the figures on the right illustrate possible cross sections.
• the cross sections illustrate a snowboard that compensates for the stiffness round the bindings by having an extra uplift on the lateral edges in the secondary areas at the binding attachments, cross section in D and O.
• the board In towards the middle, the board is flat over its entire width, as cross section in E, M, N. From D and O towards the tips, the uplift first decreases slightly, see cross sections C and P which depict less uplift of the lateral edge than the cross sections in D and O. From C and P the uplift increases forwards/backwards to B/Q and further increases until the transition to the tips AJX.
• the shape of the top is only illustrated as flat, but may be and usually is different.
• Figure 12 illustrates a snowboard according to the invention viewed from the sole side, where the lines show the transition between the first sole surface and the rest of the board.
• three different widths are used on the sole portion where at the same time there is a raised, outer, secondary sole portion.
• the board is approximately symmetrical about the longitudinal axis, but this is not necessary.
• the sections on the right side of the figure indicate the sliding surface.
• the cross sections illustrate a snowboard that has a slightly varying degree of uplift in the lateral edge that creates very special dynamic characteristics, but where the uplift in the lateral edge is substantially increasing from the bindings towards the tips.
• Figure 13 illustrates a ski according to the invention viewed from the top, where the lines show break points and the hatched area is the raised portions (auxiliary profile) on the top for simplifying and improving the sanding of the skis at ski service.
• Figure 14 illustrates the same ski as in Fig. 13 viewed from the underside, where the lines show the transition between the first sole surface and the rest of the board.
• the underside of the cross sections illustrates a ski specially adapted for running on rails with less risk of being caught in the middle, since the lateral edge is raised as illustrated in cross section M, and then the uplift towards C and N is reduced, before again increasing towards G and O with even more uplift in A and X, where the final raised portion is conditional on the desire for a good dynamic during normal running.
• the top of the cross sections shows an extra profile over the secondary lateral area in front and at the rear but not in the middle, where they provide an easier and more precise sanding of the boards.
• the profile is drawn here placed on the ski and therefore removable, but it can just as well be integrated in the ski. If it is removable, in principle it can be sent with only one piece in front and one at the rear and then one can always run without and take it along to ski service when the ski has to be sanded or ski service has them and can mount them.
• Fig. 15 illustrates the sole surface on a ski, where the break points (9) between the individual sole surfaces are typically not straight lines.
• Fig. 16 illustrates a removable auxiliary strip mounted on the right side, with attachment devices for it on both sides, and where the height of the strip typically approaches zero at both ends in order to provide a uniform transition to the ski's/board's plane during sanding at ski service.
• the secondary lateral area is not symmetrical about the central transversal axis BB but in principle it could be.
• it is drawn fairly symmetrically about the central longitudinal axis, but in principle it could just as well be asymmetrical. This applies to all the figures - the illustrated principle applies both to symmetrical and asymmetrical.
• top of the board may be combined with this invention.
• Another advantage of such raised portions is that the guide wheel always has an optimal pressure distribution over the secondary lateral surfaces when the sole is sanded, provided the guide wheel presses over the raised portion on one side.
• an attachment device can be provided in the snowboard's or the ski's surface for a raised portion which is placed on one side only when the board/ski is to be sanded on that side and then the same profile is placed on the other side when the other side is to be sanded, removing the profile when the flat sole portion is to be sanded.
• Ski service has bridges to place on the bindings. These bridges can be provided with raised portions on one side or the other. Alternatively, the profiles may be placed on the bridges. Easy-to-sand skis (and boards) with secondary sole surfaces are thereby obtained.

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• Road Paving Structures (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

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Citations (9)

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• 2007
  • 2007-02-16 DE DE112007000387T patent/DE112007000387T5/de not_active Withdrawn
  • 2007-02-16 US US12/161,865 patent/US8348300B2/en active Active
  • 2007-02-16 WO PCT/NO2007/000061 patent/WO2007094690A2/en active Application Filing
  • 2007-02-16 AT AT0906707A patent/AT505588B1/de not_active IP Right Cessation

Patent Citations (9)

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